Bella has been anything but shy when it comes to rocking looks, whether on the red carpet or during casual outings; the 18-year-old former Disney Channel star attended SXSW in Austin, TX, earlier this week in a curve-hugging Marc Jacobs dress and took things even further in a sheer, floor-length number for a Golden Globes afterparty back in January. Keep reading for Bella's steamy beach snaps, then see her style evolution over the years.